# data='Boom_MD5****'
# flag=MD5(data)
# print(flag)
# #0618ac93d4631df725bceea74d0*****
# md52 = hashlib.md5(tmp1.encode()).hexdigest()
import hashlib
import string


def md5_boom():
    a1 = string.printable[:-1]
    data1 = 'Boom_MD5'
    md51 = '0618ac93d4631df725bceea74d0'
    for b1 in a1:
        for b2 in a1:
            for b3 in a1:
                for b4 in a1:
                    tmp = f'{data1}{b1}{b2}{b3}{b4}'
                    md52 = hashlib.md5(tmp.encode()).hexdigest()[:-5]
                    if md51 == md52:
                        return tmp


flag = md5_boom()
print(f'NSCTF{{{flag}}}')
